Content for TR 38.835 Word version: 18.0.1

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B.2.6 Early stopping of On Duration Timer
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B.2.6 Early stopping of On Duration Timer p. 75

This clause captures evaluation results for early stopping of DRX On Duration Timer based on the expiration of InactivityTimer or a configured time window:

Huawei, Xiaomi and MediaTek evaluated early stopping of the On Duration Timer after the InactivityTimer or a configured time window expires to stop PDCCH monitoring.

Table B.2.6-1: FR1, DL-only, DU, VR30

source	data row index	Tdoc source	Power saving scheme	CDRX cycle (ms)	ODT (ms)	IAT (ms)	Load H/L	#UE /cell	floor (Capacity)	% of satisfied UE	Capacity gain (%)	Mean PSG of all UEs (%)	Mean PSG of satisfied UEs (%)
Huawei	11	R1-2210906	Always On	-	12	4	H	11	11	93.42%	0.0%	0.0%	-
Huawei	12	R1-2210906	Aligned CDRX	50 {0, 16, 33}	12	4	H	11	11	91.43%	-2.1%	7.64%	-
Huawei	13	R1-2210906	Aligned CDRX + early stopping of ODT	50 {0, 16, 33}	12	4	H	11	11	88.23%	-5.6%	10.22%	-

Based on the evaluation results in Table B.2.6-1, the following observations can be made.

For FR1, DL only, DU, high load, VR 30Mbps traffic at 60fps and 10ms PDB, it is observed from Huawei that:
- on top of eCDRX, the early stopping of ODT provides:
  - power saving gain of 10.22% for all UEs
  - capacity gain of -5.6%
- eCDRX as the performance reference provides:
  - power saving gain of 7.64% for all UEs
  - capacity gain of -2.1%

Table B.2.6-2: FR1, DL-only, DU, CG30

source	data row index	Tdoc source	Power saving scheme	CDRX cycle (ms)	ODT (ms)	IAT (ms)	Load H/L	#UE /cell	floor (Capacity)	% of satisfied UE	Capacity gain (%)	Mean PSG of all UEs (%)	Mean PSG of satisfied UEs (%)
MTK	22	R1-2212253	AlwaysOn - baseline	0	0	0	H	12	12	94.6%	0.0%	0%	-
MTK	23	R1-2212253	R15/16CDRX	16	12	8	H	12	12	92.7%	-2.0%	5.4%	-
MTK	24	R1-2212253	eCDRX (rational DRX cycle)	(50/3)	12	8	H	12	12	94.3%	-0.3%	9.9%	-
MTK	25	R1-2212253	eCDRX + stop ODT early	(50/3)	12	8	H	12	12	92.4%	-2.3%	16.6%	-

Based on the evaluation results in Table B.2.6-2, the following observations can be made:

For FR1, DL only, DU, high load, CG 30Mbps traffic at 60fps and 15ms PDB, it is observed from MediaTek that:
- with eCDRX, the early stopping of ODT provides:
  - power saving gain of 16.6% for all UEs
  - capacity gain of -2.3%
- eCDRX as the performance reference provides:
  - power saving gain of 9.9% for all UEs
  - capacity gain of -0.3%

Table B.2.6-3: FR1, DL-only, DU, VR45

source	data row index	Tdoc source	Power saving scheme	CDRX cycle (ms)	ODT (ms)	IAT (ms)	Load H/L	#UE /cell	floor (Capacity)	% of satisfied UE	Capacity gain (%)	Mean PSG of all UEs (%)	Mean PSG of satisfied UEs (%)
Xiaomi	1	R1-2211341	AlwaysOn	-	-	-	H	3	3	100%	0.0%	-	0.0%
Xiaomi	6	R1-2211341	CDRX	16/17/17	12	4	H	3	3	98.41%	-1.59%	-	11.39%
Xiaomi	5	R1-2211341	CDRX+On duration early termination	16/17/17	12	4	H	3	3	94.92%	-5.08%	-	43.18%

Based on the evaluation results in Table B.2.6-3, the following observations can be made:

For FR1, DL only, DU, high load, VR 45Mbps traffic at 60fps and 10ms PDB, it is observed from Xiaomi that:
- with eCDRX, the early stopping of ODT provides:
  - power saving gain of 43.18% for satisfied UEs
  - capacity gain of -5.08%
- eCDRX as the performance reference provides:
  - power saving gain of 11.39% for all UEs
  - capacity gain of -1.59%